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Code Activity

Clean up the rather historically encumbered interface to now() and

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current time: provide a GetCurrentTimestamp() function that returns
current time in the form of a TimestampTz, instead of separate time_t
and microseconds fields.  This is what all the callers really want
anyway, and it eliminates low-level dependencies on AbsoluteTime,
which is a deprecated datatype that will have to disappear eventually.
This commit is contained in:
Tom Lane
2005-06-29 22:51:57 +00:00
parent c33d575899
commit b5f7cff84f
19 changed files with 135 additions and 213 deletions
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35
src/backend/access/transam/xact.c
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@ -10,7 +10,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/access/transam/xact.c,v 1.208 2005/06/28 05:08:51 tgl Exp $
* $PostgreSQL: pgsql/src/backend/access/transam/xact.c,v 1.209 2005/06/29 22:51:53 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -168,12 +168,11 @@ static SubTransactionId currentSubTransactionId;
static CommandId currentCommandId;
/*
* These vars hold the value of now(), ie, the transaction start time.
* This is the value of now(), ie, the transaction start time.
* This does not change as we enter and exit subtransactions, so we don't
* keep it inside the TransactionState stack.
*/
static AbsoluteTime xactStartTime; /* integer part */
static int xactStartTimeUsec; /* microsecond part */
static TimestampTz xactStartTimestamp;
/*
* GID to be used for preparing the current transaction. This is also
@ -420,28 +419,15 @@ GetCurrentCommandId(void)
return currentCommandId;
}
/*
* GetCurrentTransactionStartTime
* GetCurrentTransactionStartTimestamp
*/
AbsoluteTime
GetCurrentTransactionStartTime(void)
TimestampTz
GetCurrentTransactionStartTimestamp(void)
{
return xactStartTime;
return xactStartTimestamp;
}
/*
* GetCurrentTransactionStartTimeUsec
*/
AbsoluteTime
GetCurrentTransactionStartTimeUsec(int *msec)
{
*msec = xactStartTimeUsec;
return xactStartTime;
}
/*
* GetCurrentTransactionNestLevel
*
@ -1391,7 +1377,7 @@ StartTransaction(void)
/*
* set now()
*/
xactStartTime = GetCurrentAbsoluteTimeUsec(&(xactStartTimeUsec));
xactStartTimestamp = GetCurrentTimestamp();
/*
* initialize current transaction state fields
@ -1633,8 +1619,6 @@ PrepareTransaction(void)
TransactionId xid = GetCurrentTransactionId();
GlobalTransaction gxact;
TimestampTz prepared_at;
AbsoluteTime PreparedSec; /* integer part */
int PreparedUSec; /* microsecond part */
ShowTransactionState("PrepareTransaction");
@ -1697,8 +1681,7 @@ PrepareTransaction(void)
*/
s->state = TRANS_PREPARE;
PreparedSec = GetCurrentAbsoluteTimeUsec(&PreparedUSec);
prepared_at = AbsoluteTimeUsecToTimestampTz(PreparedSec, PreparedUSec);
prepared_at = GetCurrentTimestamp();
/* Tell bufmgr and smgr to prepare for commit */
BufmgrCommit();